1022942538 has 48 divisors (see below), whose sum is σ = 2276656200. Its totient is φ = 331752960.

The previous prime is 1022942537. The next prime is 1022942551. The reversal of 1022942538 is 8352492201.

It is a happy number.

1022942538 is a `hidden beast` number, since 1 + 0 + 229 + 425 + 3 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1007237169 + 15705369 = 31737^2 + 3963^2 .

It is a super-2 number, since 2×1022942538² = 2092822872099762888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1022942537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300148 + ... + 303536.

Almost surely, 2^1022942538 is an apocalyptic number.

1022942538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1022942538 is an abundant number, since it is smaller than the sum of its proper divisors (1253713662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022942538 is a wasteful number, since it uses less digits than its factorization.

1022942538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847 (or 3844 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1022942538 is about 31983.4728883528. The cubic root of 1022942538 is about 1007.5897624380.

The spelling of 1022942538 in words is "one billion, twenty-two million, nine hundred forty-two thousand, five hundred thirty-eight".